hydrometer

A scientific instrument used to measure the specific gravity or density of a liquid or solid.

• 🇫🇷Instrument scientifique utilisé pour mesurer le poids spécifique ou la densité d'un liquide ou d'un solide.

1. Measurement device B2 formal scientific

   An instrument used to measure the density or specific gravity of a liquid (or, less commonly, a solid) relative to water.

   • The winemaker used a hydrometer to check the sugar content of the grape juice.
   • A hydrometer floats in the liquid, and the reading on its stem indicates the specific gravity.
   • Technicians at the laboratory calibrated the hydrometer before each test.
   • The hydrometer showed that the battery acid had a specific gravity of 1.28.

   🇫🇷hydromètre

   Synonymes: densimeter

• hydrometers plural form
• hydrometers' possessive plural form
• hydrometer's possessive singular form